<div class="trigger-item">
    <clr-signpost>
        <button class="btn btn-link" clrSignpostTrigger>...</button>
        <clr-signpost-content [clrPosition]="'left-top'" *clrIfOpen>
            <div *ngFor="let label of labels">
                <hbr-label-piece [label]="label" [labelWidth]="130"></hbr-label-piece>
            </div>
        </clr-signpost-content>
    </clr-signpost>
</div>